Early Detection and Treatment of Common Soybean Foliar Disease

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July 10, 2024

DATE | July 2024

LOCATION | Hiawatha, KS

CROP | Soybeans

THREAT | Disease

MISSION | 1 2 3 4 5 6

Timely action is crucial to managing foliar diseases in soybeans and protecting yield potential.

PROBLEM

A disease threat was identified in 36% of the field, a common foliar disease in soybeans known for significantly suppressing yields.
The disease likely developed during warm, cloudy weather with frequent rain, spreading through spores.

RECOMMENDATION

The grower will treat the disease by applying a combination of Group 3 triazole (DMI) fungicide and strobilurin.
Fungicide application will occur between the R3 and R5 growth stages, ensuring maximum effectiveness.

OPPORTUNITY

Retailer Opportunity
Increase fungicide sales — $35/acre in this case — by leveraging early disease detection before R3 to prompt timely applications.

Grower Opportunity
Protect yields and long-term field health — early treatment delivered a 6-bushel gain ($65/acre) and informed a two-year rotation plan to reduce pathogen risk.

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